日本 にっぽん列島 れっとう改造 かいぞう ろんでしょう
nippon rettō kaizōrondeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 日本列島改造論

1. Probably a plan to reshape the Japanese archipelago.

Polite
Presumptive
Conjecture